css compatible 2, compatible with different versions of the unified browser (mainly for ie6,7,8)

The solution: use css hack

Common style ie low version compatibility issues and hack methods, see: https: //baijiahao.baidu.com/s id = 1619653290292160339 & wfr = spider & for = pc?

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Origin www.cnblogs.com/cui-ting/p/11077836.html